the material i mentioned earlier, works very well. i use it where a pipe is very close to the radiator. there was no peeling of the material at all.
And maybe my information is just skewed.
It seems like many of the quads I've seen with fiber-reinforced heat shields were peeling, but the solid aluminum was still in good shape. But these were also quads from the early 2000s. It's entirely possible the fiber-reinforced tape held strong for over 10 years, that would certainly be plenty enough lifespan for me.
